CN103451567A - Stainless steel material with strong corrosion-resisting capacity for water pump shafts and manufacturing method thereof - Google Patents
Stainless steel material with strong corrosion-resisting capacity for water pump shafts and manufacturing method thereof Download PDFInfo
- Publication number
- CN103451567A CN103451567A CN2013103334283A CN201310333428A CN103451567A CN 103451567 A CN103451567 A CN 103451567A CN 2013103334283 A CN2013103334283 A CN 2013103334283A CN 201310333428 A CN201310333428 A CN 201310333428A CN 103451567 A CN103451567 A CN 103451567A
- Authority
- CN
- China
- Prior art keywords
- water pump
- stainless steel
- steel material
- corrosion
- slag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a stainless steel material with a strong corrosion-resisting capacity for water pump shafts and a manufacturing method thereof. The stainless steel material comprises the following elementary ingredients in percentage by weight: 0.04-0.08% of C, 3.4-3.7% of Mn, 2.3-2.5% of Ni, 10.8-12.0% of Cr, 1.5-1.8% of W, 1.2-1.4% of Si, 0.4-0.6% of As, 0.2-0.3% of Ho, 1.8-2.0% of Ta, 2.6-2.8% of Zn, 10.3-10.5% of Ni, 1.2-1.3% of Cu, less than 0.03% of S, less than 0.03% of P and the balance of iron. From observation for the metallographic structure of the stainless steel material disclosed by the invention, the crystalline particles are fine and heterogeneous substances in the structure are few, thus the occurrence tendency of intercrystalline corrosion is greatly reduced, the occurrence probability of spot corrosion is very low, and the tensile strength of the stainless steel material is greater than 950 Mpa.
Description
Technical field
The invention belongs to the metallurgical material technical field, stainless material and manufacture method thereof for the water pump shaft that specifically a kind of resistance to corrosion is strong.
Background technology
Water pump is the machinery of carrying liquid or making the liquid supercharging.It sends the mechanical energy of primover or other external energies to liquid, liquid energy is increased, be mainly used to carry liquid to comprise water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid metal etc., the liquid that also can carry liquid, gaseous mixture and contain suspended solids.Water pump mainly is comprised of pump case, pump cover, pump shaft, impeller and tightness system.So, due to the working conditions of the water pump severe requirement difference of the water pump of assorted different purposes to parts again, include acidproof, alkaline-resisting, salt spray resistance, heat-resisting, high temperature resistant etc.Therefore, need the different stainless material of research to meet real needs.
Summary of the invention
The purpose of this invention is to provide stainless material and manufacture method thereof for water pump shaft that a kind of resistance to corrosion is strong.
Technical scheme of the present invention is as follows:
The water pump shaft stainless material that a kind of resistance to corrosion is strong is characterized in that: the elemental composition that wherein contains following weight percent: C0.04-0.08, Mn3.4-3.7, Ni2.3-2.5, Cr10.8-12.0, W1.5-1.8, Si1.2-1.4, As0.4-0.6, Ho0.2-0.3, Ta1.8-2.0, Zn2.6-2.8, Cu1.2-1.3, S, P are less than 0.03, surplus is iron.
The water pump shaft that described resistance to corrosion the is strong manufacture method of stainless material, comprise melting, esr, forging, it is characterized in that:
(1), melting: by constituent content, in vacuum induction furnace, throw in the pig iron, steel scrap and each element raw material, the two weight ratio of the pig iron, steel scrap is 1:1-1.2, after 1620-1660 ℃ of lower melting fusing, after fusing finishes, sampling analysis is also adjusted, and deoxidation slag making, after result to be analyzed meets the requirements, reduce tapping temperature to 1530-1560 ℃, and cast is tapped to ladle, the pouring molten steel temperature is controlled at 1490-1510 ℃, obtains electroslag bar;
(2), vacuum arc remelting: first in electroslag furnace, add electroslag bar, install crystallizer, added the striking agent, energising, striking and add slag, be melted in slag in electric furnace, and electroslag bar is melted, Deng crystallizer molten steel, after setting regions, have a power failure, naturally cooling is after 10 hours, and the demoulding forms billet;
Described slag is made by the raw material of following weight part:
Fluorite 4-5, ferric oxide 1-2, flaky graphite powder 2-3, wilkinite 1-2, Al
2o
34-5,, MgO3-4, husk ashes 3-4, Bi
2o
31-2, vanadium diboride 2-3, sodium aluminum fluoride 1-2; The preparation method be by fluorite, wilkinite at 500-540 ℃ of lower roasting 4-5 hour, then, with after 10-15% hydrochloric acid soln washing, dry, become the powder of 40-100 μ m with other raw material mixed grinding, get final product;
(3), forge.
Stainless material of the present invention, observe its metallographic structure, and crystal grain is tiny, heterogeneous few mutually in tissue, greatly alleviated the tendency that intergranular corrosion occurs, and the probability that spot corrosion occurs is also very little, and its tensile strength is greater than 950Mpa.
Embodiment
The water pump shaft stainless material that a kind of resistance to corrosion is strong, wherein contain the elemental composition of following weight percent: C0.04-0.08, Mn3.4-3.7, Ni2.3-2.5, Cr10.8-12.0, W1.5-1.8, Si1.2-1.4, As0.4-0.6, Ho0.2-0.3, Ta1.8-2.0, Zn2.6-2.8, Cu1.2-1.3, S, P are less than 0.03, surplus is iron.
The water pump shaft that resistance to corrosion the is strong manufacture method of stainless material, comprise melting, esr, forging;
(1), melting: by constituent content, in vacuum induction furnace, throw in the pig iron, steel scrap and each element raw material, the two weight ratio of the pig iron, steel scrap is 1:1.2, after 1620-1660 ℃ of lower melting fusing, after fusing finishes, sampling analysis is also adjusted, and deoxidation slag making, after result to be analyzed meets the requirements, reduce tapping temperature to 1530-1560 ℃, and cast is tapped to ladle, the pouring molten steel temperature is controlled at 1490-1510 ℃, obtains electroslag bar;
(2), vacuum arc remelting: first in electroslag furnace, add electroslag bar, install crystallizer, added the striking agent, energising, striking and add slag, be melted in slag in electric furnace, and electroslag bar is melted, Deng crystallizer molten steel, after setting regions, have a power failure, naturally cooling is after 10 hours, and the demoulding forms billet;
Described slag is made by the raw material of following weight part (kilogram):
Fluorite 4, ferric oxide 2, flaky graphite powder 2, wilkinite 1, Al
2o
35,, MgO3, husk ashes 3, Bi
2o
31, vanadium diboride 3, sodium aluminum fluoride 2; The preparation method be by fluorite, wilkinite at 500-540 ℃ of lower roasting 4-5 hour, then, with after 10-15% hydrochloric acid soln washing, dry, become the powder of 40-100 μ m with other raw material mixed grinding, get final product;
(3), forge: by Heating Steel Ingots to 1050～1100 ℃, carry out hammer cogging or forging, then steel billet is reheated to 1050～1100 ℃, be rolled, then stove is chilled to 450 ℃, the air cooling anneal.
The deoxidation of slag of the present invention, desulfurization, dephosphorization rate, between 65-75%, are removed the inclusion in molten stainless steel and make the internal soundness that inclusion modification is effective, cleaning molten steel has improved steel, and the degree of porosity in foundry goods reduces the 1-2 degree, is controlled effectively.
After testing, stainless material of the present invention, its tensile strength is greater than 950 MPa, yield strength >=818Mpa; Unit elongation can reach 11%.Processing characteristics is good.Carry out salt-fog test (SWAAT test).The corrosion test time is set as 800 hours, and material surface is not without obvious corrosion pit.
Claims (2)
1. the water pump shaft stainless material that resistance to corrosion is strong is characterized in that: the elemental composition that wherein contains following weight percent: C0.04-0.08, Mn3.4-3.7, Ni2.3-2.5, Cr10.8-12.0, W1.5-1.8, Si1.2-1.4, As0.4-0.6, Ho0.2-0.3, Ta1.8-2.0, Zn2.6-2.8, Cu1.2-1.3, S, P are less than 0.03, surplus is iron.
2. the manufacture method of stainless material for the water pump shaft that resistance to corrosion according to claim 1 is strong, comprise melting, esr, forging, it is characterized in that:
(1), melting: by constituent content, in vacuum induction furnace, throw in the pig iron, steel scrap and each element raw material, the two weight ratio of the pig iron, steel scrap is 1:1-1.2, after 1620-1660 ℃ of lower melting fusing, after fusing finishes, sampling analysis is also adjusted, and deoxidation slag making, after result to be analyzed meets the requirements, reduce tapping temperature to 1530-1560 ℃, and cast is tapped to ladle, the pouring molten steel temperature is controlled at 1490-1510 ℃, obtains electroslag bar;
(2), vacuum arc remelting: first in electroslag furnace, add electroslag bar, install crystallizer, added the striking agent, energising, striking and add slag, be melted in slag in electric furnace, and electroslag bar is melted, Deng crystallizer molten steel, after setting regions, have a power failure, naturally cooling is after 10 hours, and the demoulding forms billet;
Described slag is made by the raw material of following weight part:
Fluorite 4-5, ferric oxide 1-2, flaky graphite powder 2-3, wilkinite 1-2, Al
2o
34-5,, MgO3-4, husk ashes 3-4, Bi
2o
31-2, vanadium diboride 2-3, sodium aluminum fluoride 1-2; The preparation method be by fluorite, wilkinite at 500-540 ℃ of lower roasting 4-5 hour, then, with after 10-15% hydrochloric acid soln washing, dry, become the powder of 40-100 μ m with other raw material mixed grinding, get final product;
(3), forge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103334283A CN103451567A (en) | 2013-08-02 | 2013-08-02 | Stainless steel material with strong corrosion-resisting capacity for water pump shafts and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103334283A CN103451567A (en) | 2013-08-02 | 2013-08-02 | Stainless steel material with strong corrosion-resisting capacity for water pump shafts and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103451567A true CN103451567A (en) | 2013-12-18 |
Family
ID=49734396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103334283A Pending CN103451567A (en) | 2013-08-02 | 2013-08-02 | Stainless steel material with strong corrosion-resisting capacity for water pump shafts and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103451567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159543A (en) * | 2017-12-27 | 2019-08-23 | 浙江中太泵业科技有限公司 | A kind of centrifugal pump of single stage type of easy access |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580917A (en) * | 2002-03-25 | 2009-11-18 | 朴庸秀 | High-grade duplex stainless steel |
| CN101784687A (en) * | 2007-10-03 | 2010-07-21 | 住友金属工业株式会社 | Austenitic stainless steel |
| CN102317489A (en) * | 2007-10-04 | 2012-01-11 | 住友金属工业株式会社 | Austenitic stainless steel |
-
2013
- 2013-08-02 CN CN2013103334283A patent/CN103451567A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580917A (en) * | 2002-03-25 | 2009-11-18 | 朴庸秀 | High-grade duplex stainless steel |
| CN101784687A (en) * | 2007-10-03 | 2010-07-21 | 住友金属工业株式会社 | Austenitic stainless steel |
| CN102317489A (en) * | 2007-10-04 | 2012-01-11 | 住友金属工业株式会社 | Austenitic stainless steel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159543A (en) * | 2017-12-27 | 2019-08-23 | 浙江中太泵业科技有限公司 | A kind of centrifugal pump of single stage type of easy access |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101250636B (en) | Nonferrous alloy smelting fusing agent and preparation method | |
| CN103160729A (en) | Medium-carbon microalloyed steel for engineering machinery caterpillar chain piece and production process thereof | |
| CN102899582A (en) | High strength nickel base corrosion resistance alloy and manufacturing method thereof | |
| CN109778053A (en) | A kind of vacuum metling technique of the high high titanium steel of manganese high alumina | |
| CN104975239A (en) | Production method for British standard B500C straight twisted steel | |
| CN109518079A (en) | A kind of production method of hydrogen-contacting equipment 15CrMoR steel plate | |
| CN103451566A (en) | High-strength stainless steel material for pump shafts and manufacturing method thereof | |
| CN113897541B (en) | High-chromium wear-resistant steel ball and casting process thereof | |
| CN105755396A (en) | High-strength corrosion-resistant anti-oxidation high-chromium steel and preparation method thereof | |
| CN103469114A (en) | High-toughness stainless steel material used for water pump shell, and preparation method thereof | |
| CN104152803A (en) | Corrosion-resistant submerged pump impeller | |
| CN103451573A (en) | Cavitation corrosion-resistant stainless steel alloy material for water pump impeller and manufacturing method thereof | |
| CN100535132C (en) | Iron and steel metallurgical compound refining agent | |
| CN114635077A (en) | Super austenitic stainless steel and preparation method thereof | |
| CN102676877B (en) | Iron white copper alloy and preparation method thereof | |
| CN110578101B (en) | Marine tempered sorbite high-strength and high-toughness stainless structural steel and preparation method thereof | |
| CN102433459A (en) | Phosphorous bronze bar | |
| CN102181755B (en) | Low calcium-aluminum-manganese-iron alloy and preparation method thereof | |
| CN103451567A (en) | Stainless steel material with strong corrosion-resisting capacity for water pump shafts and manufacturing method thereof | |
| CN105543646A (en) | Production process for medium-high carbon steel through thin slabs | |
| CN102691019A (en) | Method for smelting nitrogen-controlled nuclear-grade stainless steel | |
| CN103451569A (en) | Corrosion-resistant and high-strength stainless steel material for pump covers and manufacturing method thereof | |
| CN103451568A (en) | High-carbon stainless steel material for impeller shafts and manufacturing method thereof | |
| CN102653842A (en) | High-strength and wear-resistant cast-steel conical liner plate for crushers and manufacturing method thereof | |
| CN103805856B (en) | The corrosion-resistant ocean structure steel of yield strength >=800MPa and production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131218 |